More timing functions

timer.hpp

@@ -0,0 +1,39 @@
+#include <x86intrin.h>
+#include "rtweekend.hpp"
+
+
+#define TIMED_BLOCK__(number, ...) timed_block timed_block_##Number(__COUNTER__, __FILE__, __LINE__, __FUNCTION__, ##__VA_ARGS__)
+#define TIMED_BLOCK_(number, ...) TIMED_BLOCK__(number, ##__VA_ARGS__)
+#define TIMED_BLOCK(...) TIMED_BLOCK_(__LINE__, ##__VA_ARGS__)
+
+struct debug_record
+{
+    uint64_t cycles;
+    uint64_t hit_count;
+    const char *filename;
+    const char *function_name;
+
+    uint32_t line_number;
+    
+};
+
+extern debug_record debug_record_array[];
+
+struct timed_block {
+    // TODO: Thread safety
+    debug_record *record;
+    
+    timed_block(int counter, const char *filename, int line_number, const char *function_name, int hit_count = 1)
+    {
+        record = debug_record_array + counter;
+        record->filename = filename;
+        record->line_number = line_number;
+        record->function_name = function_name;
+        record->cycles -= __rdtsc();
+        record->hit_count += hit_count;
+    }
+    ~timed_block()
+    {
+        record->cycles += __rdtsc();
+    }
+};